nada. I just fit them to the slide. The Citadels, just like all the rest of the Armscor pistols including american classic and RIA, have an odd size dovetail system, but they are very very close to standard Novak dovetails. Johns dovetails measured .315X65* up front and .490X65* rear. Std Novaks are .330X65* and .495X65* so i had some 'extra sight' to work with on both ends which allowed me to give them a very tight fit so theyll never 'walk' loose under recoil forces.
John opted for a fully adjustable rear replacement, which was a $125 rear sight made by Kensight. The front is a .175" high replacement, which is .010 lower than the original so John can have all of his 'UP' adjustment with his rear sight, not that hed be needing to adjust it to shoot 100 yds but.. you never know..